Senior Python Developer (AI SaaS)

TL;DR

Senior Python Developer (AI SaaS): Design and implement complex backend features for an enterprise AI SaaS platform in the biopharmaceutical industry with an accent on scalable, secure, and well-tested code. Focus on building distributed systems, REST APIs, and optimizing database interactions using advanced Python frameworks and cloud technologies.

Location: Remote (Ukraine)

Company

Leading enterprise AI SaaS company for digital transformation in the biopharmaceutical industry.

What you will do

• Design and implement complex backend features from conception to deployment.
• Write clean, secure, scalable, and well-documented code following best practices.
• Perform comprehensive code reviews and support team engineering standards.
• Participate actively in all SDLC phases including planning, development, testing, and deployment.
• Assist in technical interviewing and knowledge sharing within the team.

Requirements

• Fluent / Upper-Intermediate English.
• More than 5 years of professional Python development experience.
• Strong knowledge of Python frameworks such as FastAPI, Flask, and their architectures.
• Experience developing REST APIs for distributed systems (microservices, SOA).
• Proficiency with asyncio and related libraries (aiohttp, tornado).
• Deep understanding of OOP, SOLID, GRASP, architectural patterns, and security principles.
• Experience with PostgreSQL, SQLAlchemy (sync and async), and database optimization.
• Familiarity with CI/CD tools and public cloud deployment (Azure is a plus).
• Knowledge of Docker and Kubernetes principles.
• Advanced testing skills with unittest, pytest, and mock.

Nice to have

• Experience with Azure DevOps and cloud app management.

Culture & Benefits

• Remote work from Ukraine.
• Collaborative cross-functional team environment.
• Focus on quality and engineering best practices.